linux/drivers/net/bonding
Michal Kubecek ae0be8de9a netlink: make nla_nest_start() add NLA_F_NESTED flag
Even if the NLA_F_NESTED flag was introduced more than 11 years ago, most
netlink based interfaces (including recently added ones) are still not
setting it in kernel generated messages. Without the flag, message parsers
not aware of attribute semantics (e.g. wireshark dissector or libmnl's
mnl_nlmsg_fprintf()) cannot recognize nested attributes and won't display
the structure of their contents.

Unfortunately we cannot just add the flag everywhere as there may be
userspace applications which check nlattr::nla_type directly rather than
through a helper masking out the flags. Therefore the patch renames
nla_nest_start() to nla_nest_start_noflag() and introduces nla_nest_start()
as a wrapper adding NLA_F_NESTED. The calls which add NLA_F_NESTED manually
are rewritten to use nla_nest_start().

Except for changes in include/net/netlink.h, the patch was generated using
this semantic patch:

@@ expression E1, E2; @@
-nla_nest_start(E1, E2)
+nla_nest_start_noflag(E1, E2)

@@ expression E1, E2; @@
-nla_nest_start_noflag(E1, E2 | NLA_F_NESTED)
+nla_nest_start(E1, E2)

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27 17:03:44 -04:00
..
bond_3ad.c bonding: count master 3ad stats separately 2019-01-24 22:18:48 -08:00
bond_alb.c net: dev: Add extack argument to dev_set_mac_address() 2018-12-13 18:41:38 -08:00
bond_debugfs.c bonding: convert to DEFINE_SHOW_ATTRIBUTE 2018-12-10 12:05:20 -08:00
bond_main.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-04-17 11:26:25 -07:00
bond_netlink.c netlink: make nla_nest_start() add NLA_F_NESTED flag 2019-04-27 17:03:44 -04:00
bond_options.c bonding: check slave set command firstly 2019-02-14 11:35:50 -05:00
bond_procfs.c bonding: switch to proc_create_seq_data 2018-05-16 07:24:30 +02:00
bond_sysfs_slave.c bonding: show full hw address in sysfs for slave entries 2019-03-29 13:32:39 -07:00
bond_sysfs.c bonding: don't cast const buf in sysfs store 2018-07-22 10:09:30 -07:00
bonding_priv.h net/bonding: Make DRV macros private 2015-04-26 22:59:53 -04:00
Makefile bonding: add sysfs /slave dir for bond slave devices. 2014-01-17 18:51:58 -08:00